#include<stdio.h>


int main()
{

    int a[10] = { 10,9,8,7,6,5,4,3,2,1 };
    int k, s, i;
    float ave;


    for (i = 0, k = s = 0; i < 10; i++)
    {
        if (a[i] % 2 == 0) continue;  
        s += a[i]; 
        k++;
    }
    if (k != 0)
    {
        ave = s * 1.0 / k;  
        printf("%d,%.2f\n", k, ave);
    }



    return 0;
}